| TABLE OF CONTENTS |
|---|
| I. | [ENGINEERING AND MECHANICS.--The New York Canals.--Their history, dimensions, and commercial influence] |
| [Cottrau's Locomotive for Ascending SteepGrades.--1 figure] |
| [Bachmann's Steam Drier--3 figures] |
| [H. S. Parmelee's Patent Automatic sprinkler.--2figures] |
| [Instrument for Drawing Converging StraightLines.--10 figures] |
| [Feed Water Heater and Purifier. By GEO. S.STRONG.--2 figures] |
| [Paper Making "Down East."] |
| [Goulier's Tube Gauge.--1 figure.-Plan andlongitudinal and transverse sections] |
| [Soldering Without an Iron] |
| [Working Copper Ores at Spenceville] |
| II. | [TECHNOLOGY AND CHEMISTRY-New Method of DetectingDyes on Yarns and Tissues. By JULES JOFFRE.--Reagents.--Redcolors.--Violet colors] |
| [Chevalet's Condenso-purifier for Gas.--2figures.--Elevation and plan] |
| [Artificial Ivory] |
| [Creosote Impurities. By Prof P. W.BEDFORD] |
| III. | [ELECTRICITY. ETC.--Sir William Thomson's Pile--2figures] |
| [Siemens' Telemeter.--1 figure.--Siemens electrictelemeter] |
| [Physics Without Apparatus.--Experiment in staticelectricity.-- 1 figure] |
| [The Cascade Battery. By F. HIGGINS.--1figure] |
| [Perfectly Lovely Philosophy] |
| IV. | [ASTRONOMY, ETC.--The Comet as seen from thePyramids near Cairo, Egypt.--1 figure] |
| [Sunlight and skylight at HighAltitudes.--Influence of the atmosphere upon the solarspectrum.--Observations of Capt. Abney and Professor Langley.--2figures] |
| [How to Establish a True Meridian] |
| V. | [MINERALOGY.--The Mineralogical Localities in andAround New York City, and the Minerals Occurring Therein. By NELSONH. DAKTON. Part III.--Hoboken minerals.--Magnesite.--Dolomite.--Brucite.--Aragonite.--Serpentine.--Chromic iron--Datholite.--Pectolite.--Feldspar.--Copper mines, Arlington, N.J.-Greenmalachite.--Red oxide of copper.--Copperglance.--Erubescite] |
| VI. | [ENTOMOLOGY.--The Buckeye Leaf Stem Borer] |
| [Defoliation of Oak Trees by Dryocampasenatoria in Perry County, Pa.] |
| [Efficacy of Chalcid Egg Parasites] |
| [On the Biology of Gonatopis Pilosus,Thoms] |
| [Species of Otiorhynchadae Injurious to CultivatedPlants] |
| VII. | [ART, ARCHITECTURE, ETC.--Monteverde's Statue ofArchitecture. --Full page illustration, Lit Architectura. ByJULI MONTEVERDE] |
| [Design for a Gardener's Cottage.--1figure] |
| VIII. | [HYGIENE AND MEDICINE.--Remedy for SickHeadache] |
| IX. | [ORNITHOLOGY.--Sparrows in the UnitedStates.--Effects of acclimation, etc.] |
| X. | [MISCELLANEOUS.--James Prescott Joule, withPortrait.--A sketch of the life and investigations of thediscoverer of the mechanical equivalent of heat. By J. T.BOTTOMLEY] |
| [The Proposed Dutch International Colonial andGeneral Export Exhibition.--1 figure.--Plan of the AmsterdamExhibition] |
